Means for supporting and adjusting concaves.



No. 685,|07. Patented Oct. 22, 190i.

H. c. CLAY. MEANS FOR SUPPORTING AND ADJUSTING CONCAVES.

(Application filed Fb. 25, 1901.)

(No Model.)

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UNITED STATES PATENT OFFICE.

HARRY C. CLAY, OF COLUMBUS, INDIANA, ASSIGNOR TO REEVES & COM- PANY, OFCOLUMBUS, INDIANA, A CORPORATION OF INDIANA.

MEANS FOR SUPPORTING AND ADJUSTING CONCAVES.

SPECIFICATION forming part of Letters Patent No. 685,107, dated October22, 1901. Application filed February 25, 1901. $eria1No. 48,708. (Nomodel.)

To all whom it may concern.-

Be it known that I, HARRY C. CLAY, a citizen of the United States,residing at Colum= bus, in the county of Bartholomew and State ofIndiana, have invented a new and useful Concave Support and AdjustingMeans, of which the following is a specification.

My invention relates to an improved means for supporting and adjustingthe forward end of a separator-concave.

The object of my invention is to provide a support and adjusting meansfor a separatorconcave in which the weight and thrust of the concavewill not be sustained by the adjustingshaft, but will be transmitteddirectly to the supporting-framework.

The accompanying drawings illustrate my invention.

Figure 1 is a transverse section of a concave provided with myimprovement. Fig. 2 is a vertical section on line 2 2 of Fig. 1. Fig. 3is a section on line 3 3 of Fig. 2.

In the drawings, 4 4: indicate a pair of concave sides between which aremounted the usual concave-segments 4:. The rear end of each side at maybe supported by any suitable means, an adjusting-shaft and cam 5 beingshown in the present case.

The operation of the cooperating cylinder 6 creates a considerablethrust of the concave,and this thrust has heretofore been taken by atransverse shaft which carried the adj usting means for the forward endof the concave. In the present construction this thrust is transferreddirectly to the framework of the casing in the following manner: Securedto each of the beams 7 7 of the inclosing casing is a bracket 8,provided with a bearing-boss 9, which is adapted to receive the hub 10of a cam 11. Cam 11 cooperates with a flange 12, formed upon theadjacent concave side 4, so as to sustain the weight of the forward endof said side. The interior of hub 10 is provided with a non-circularopening, preferably square in cross-section, through which is passed theadjusting-shaft 13, said shaft passing through both hubs 10 and beingprovided with a suitable operating-handle 14..

Each side 4 is provided with a slot 15, into which the inner end of boss9 projects, the said boss being of the same diameter as the width of theslot. By this construction the thrust of the concave is taken-directlyby bracket 8, due to the engagement of boss 9 within slot 15, and theWeight of the forward end of the concave is also supported by saidbracket because cam 11 is journaled in and is supported by the saidbracket. There is therefore no weight or stress upon shaft 13, so thatsaid shaft may be considerably smaller than has heretofore been thepractice.

I claim as my invention- 1. The combination with a concave, of astationary bracket, a sliding connection between said bracket and theconcave, and means for shifting the concave.

2. The combination with a concave having a slot in one end thereof, of astationary bracket provided with a boss lying within said slot, a shaftjournaled within said boss, and a cam carried by said shaft and arrangedto engage said concave.

3. The combination with a concave having a slot in one end thereof, of astationary bracket provided with a boss lying within said slot, a camjournaled Within said boss and arranged to engage the concave, and meansfor turning said cam.

4. The combination with a concave consisting, in part, of a pair ofsides each provided with a slot at one end, of a pair of stationarybrackets each provided with a boss extending into the slot of theadjacent concave side, a cam journaled in each of said bosses andarranged to engage the adjacent concave side, and an operating-shaftpassing through both the cams.

5. The combination with a concave, of a stationary bracket provided witha boss, a shoulder carried by the concave and adapted to engage saidboss, and a cam journaled in said boss and arranged to engage saidconcave.

, HARRY C. CLAY.

Witnesses:

A. 0. DENISON, BLANCHE HAMILTON.

